Sectors in WN4
| Sector | Main place | Postcodes |
|---|---|---|
| WN4 0 | Ashton-in-Makerfield | 193 |
| WN4 8 | Ashton-in-Makerfield | 180 |
| WN4 9 | Ashton-in-Makerfield | 231 |
Places covered by WN4
- Ashton-in-Makerfield Wigan · 541
- Land Gate Wigan · 28
- Leyland Green St. Helens · 3
- Simm's Lane End St. Helens · 3
- Golborne Wigan · 2
- Wigan Wigan · 1